1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "webrtc/system_wrappers/source/rw_lock_posix.h" 12 13 namespace webrtc { 14 15 RWLockPosix::RWLockPosix() : lock_() { 16 } 17 18 RWLockPosix::~RWLockPosix() { 19 pthread_rwlock_destroy(&lock_); 20 } 21 22 RWLockPosix* RWLockPosix::Create() { 23 RWLockPosix* ret_val = new RWLockPosix(); 24 if (!ret_val->Init()) { 25 delete ret_val; 26 return NULL; 27 } 28 return ret_val; 29 } 30 31 bool RWLockPosix::Init() { 32 return pthread_rwlock_init(&lock_, 0) == 0; 33 } 34 35 void RWLockPosix::AcquireLockExclusive() { 36 pthread_rwlock_wrlock(&lock_); 37 } 38 39 void RWLockPosix::ReleaseLockExclusive() { 40 pthread_rwlock_unlock(&lock_); 41 } 42 43 void RWLockPosix::AcquireLockShared() { 44 pthread_rwlock_rdlock(&lock_); 45 } 46 47 void RWLockPosix::ReleaseLockShared() { 48 pthread_rwlock_unlock(&lock_); 49 } 50 51 } // namespace webrtc 52
